public void Get_Overdue_Books()
{
var options = new DbContextOptionsBuilder <SchoolLibraryContext>()
.UseInMemoryDatabase("Get_Overdue_Books")
.Options;
using (var context = new SchoolLibraryContext(options))
{
context.Students.Add(new Student
{
Id = 100,
Name = "Ali"
});
context.Books.Add(new Book
{
Id = 555,
Name = "How to become a millinaire",
IsIssued = false,
Author = "XYZ"
});
context.Books.Add(new Book
{
Id = 556,
Name = "Some New Book 1",
IsIssued = false,
Author = "XYZ 1"
});
context.Books.Add(new Book
{
Id = 557,
Name = "Some New Book 2",
IsIssued = false,
Author = "XYZ 2"
});
context.SaveChanges();
}
using (var context = new SchoolLibraryContext(options))
{
var service = new BookAssignmentService(context);
service.AssignBook(555, 100);
service.AssignBook(556, 100);
service.AssignBook(557, 100);
var assignedBook1 = context.BookAssignToStudents.Single(b => b.BookId == 555);
assignedBook1.DueDate = DateTime.Now.AddDays(-5);
var assignedBook2 = context.BookAssignToStudents.Single(b => b.BookId == 557);
assignedBook2.DueDate = DateTime.Now.AddDays(-5);
context.UpdateRange(new object[] { assignedBook1, assignedBook2 });
context.SaveChanges();
var response = service.GetOverdueBooks();
Assert.Equal(2, response.Count());
}
}
